JP2001220259A - Alumina-mullite porous refractory sheet and method for producing the same - Google Patents
Alumina-mullite porous refractory sheet and method for producing the sameInfo
- Publication number
- JP2001220259A JP2001220259A JP2000028856A JP2000028856A JP2001220259A JP 2001220259 A JP2001220259 A JP 2001220259A JP 2000028856 A JP2000028856 A JP 2000028856A JP 2000028856 A JP2000028856 A JP 2000028856A JP 2001220259 A JP2001220259 A JP 2001220259A
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- mullite
- mass
- sheet
- binder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/06—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by burning-out added substances by burning natural expanding materials or by sublimating or melting out added substances
- C04B38/063—Preparing or treating the raw materials individually or as batches
- C04B38/0635—Compounding ingredients
- C04B38/0645—Burnable, meltable, sublimable materials
- C04B38/067—Macromolecular compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Porous Artificial Stone Or Porous Ceramic Products (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明はアルミナ・ムライト
系多孔質シート状耐火物及びその製造方法に関し、特
に、耐熱衝撃性に優れており、高温例えば１６００℃に
おけるたわみ抵抗性が大幅に改善されており、セラミッ
ク基板等の焼成用や、アルミナセラミックの焼成用に用
いるのに適しているアルミナ・ムライト系多孔質シート
状耐火物及びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alumina-mullite type porous sheet-like refractory and a method for producing the same, and more particularly, it is excellent in thermal shock resistance and greatly improved in deflection resistance at a high temperature, for example, 1600 ° C. Also, the present invention relates to an alumina-mullite-based porous sheet refractory suitable for firing ceramic substrates and the like and firing alumina ceramics, and a method for producing the same.
【０００２】[0002]
【従来の技術】従来技術においては、電子部品等を焼成
する際に、アルミナ質やジルコニア質の焼成用治具、例
えばアルミナ磁器シートを用い、このアルミナ磁器シー
トの上に被焼成物を載せて焼成を実施している。しか
し、従来のアルミナ磁器シートは耐熱衝撃性や熱間での
たわみ抵抗性に劣っており、１５００℃以上で使用する
と短寿命になってしまう。2. Description of the Related Art In the prior art, when firing electronic components or the like, an alumina or zirconia firing jig, for example, an alumina porcelain sheet is used, and an object to be fired is placed on the alumina porcelain sheet. Baking is being carried out. However, the conventional alumina porcelain sheet is inferior in thermal shock resistance and hot deflection resistance, and has a short life when used at 1500 ° C. or higher.
【０００３】また、アルミナ・ムライト質のプレス品は
アルミナ基板焼成用セッターとして使用されているが、
５ｍｍ以下の薄いセッターを製造することは難しく、均
一な組織が得られず、また短寿命であった。更に、面粗
度もＲａで３μｍ以下にしようとすると非常に細かい粒
構造にする必要があり、安定した製品を得ることは難し
かった。[0003] Alumina-mullite pressed products are used as setters for firing alumina substrates.
It was difficult to produce a thin setter of 5 mm or less, a uniform structure was not obtained, and the life was short. Further, if the surface roughness is to be reduced to 3 μm or less in Ra, it is necessary to form a very fine grain structure, and it has been difficult to obtain a stable product.
【０００４】[0004]
【発明が解決しようとする課題】本発明は、耐熱衝撃性
に優れており、高温例えば１６００℃におけるたわみ抵
抗性が大幅に改善されており、セラミック基板等の焼成
用や、アルミナセラミックの焼成用に用いるのに適して
いるアルミナ・ムライト系多孔質シート状耐火物及びそ
の製造方法を提供することを課題としている。DISCLOSURE OF THE INVENTION The present invention is excellent in thermal shock resistance, has greatly improved deflection resistance at high temperatures, for example, 1600 ° C., and is useful for firing ceramic substrates and the like and for firing alumina ceramics. It is an object of the present invention to provide an alumina-mullite-based porous sheet-like refractory suitable for use in a refractory and a method for producing the same.
【０００５】[0005]
【課題を解決するための手段】本発明者等は上記の課題
を達成するために鋭意検討した結果、アルミナ及びムラ
イトで構成し、特定の骨材成分及び結合材成分を特定量
で含有させ、特定範囲の気孔率を持たせることによっ
て、上記の諸特性を持ち、上記の用途に用いるのに適し
ているアルミナ・ムライト系多孔質シート状耐火物が得
られること、また、そのようなアルミナ・ムライト系多
孔質シート状耐火物は特定の骨材原料及び結合材原料を
用いる特定の製造方法により得られることを見いだし、
本発明を完成させた。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above-mentioned object, and as a result, have been made of alumina and mullite, containing a specific amount of a specific aggregate component and a specific amount of a binder material, By having a specific range of porosity, it is possible to obtain an alumina-mullite-based porous sheet-like refractory having the above-mentioned various properties and suitable for use in the above-mentioned applications. Mullite porous sheet-like refractory is found to be obtained by a specific manufacturing method using a specific aggregate raw material and a binder raw material,
The present invention has been completed.
【０００６】即ち、本発明のアルミナ・ムライト系多孔
質シート状耐火物は、電融アルミナ及び／又は焼結アル
ミナと電融ムライトとからなる粒径１０〜１５０μｍの
骨材成分５０〜８５質量％と、アルミナ及びムライトか
らなる結合材成分１５〜５０質量％と、不可避の不純物
とからなる焼成体であって、気孔率が１０〜４０％であ
ることを特徴とする。That is, the alumina-mullite-based porous sheet refractory of the present invention comprises 50 to 85% by mass of an aggregate component having a particle size of 10 to 150 μm and comprising fused alumina and / or sintered alumina and fused mullite. And a binder comprising 15 to 50% by mass of a binder component composed of alumina and mullite, and unavoidable impurities, wherein the porosity is 10 to 40%.
【０００７】また、本発明のアルミナ・ムライト系多孔
質シート状耐火物の製造方法は、電融アルミナ及び／又
は焼結アルミナと電融ムライトとからなる粒径１０〜１
５０μｍの骨材５０〜８５質量％と、焼成後にアルミナ
とムライトとになるような組成比で混合したアルミナと
シリカ微粉及び／又は粘土からなる粒径１０μｍ以下の
結合材１５〜５０質量％と、混練・成形に有効な量の有
機バインダーと水とを混合し、十分に混練した後、厚さ
０．３〜５ｍｍのシートに成形し、乾燥後、１６００〜
１８００℃で焼成することを特徴とする。The method for producing an alumina-mullite-based porous sheet refractory of the present invention is characterized in that the particle size of the fused alumina and / or sintered alumina and the fused mullite is 10-1.
50 to 85% by mass of an aggregate of 50 μm, 15 to 50% by mass of a binder having a particle size of 10 μm or less composed of alumina and silica fine powder and / or clay mixed at a composition ratio of alumina and mullite after firing; After mixing an effective amount of an organic binder and water for kneading and shaping, sufficiently kneading, shaping into a sheet having a thickness of 0.3 to 5 mm, drying, and then drying the sheet at 1600 to
It is characterized by firing at 1800 ° C.
【０００８】[0008]
【発明の実施の形態】以下に本発明の実施の形態を詳細
に説明するが、本発明はこれらに限定されるものではな
い。本発明のアルミナ・ムライト系多孔質シート状耐火
物においては、電融アルミナ及び／又は焼結アルミナと
電融ムライトとからなる粒径１０〜１５０μｍの骨材成
分が５０〜８５質量％を占めており、アルミナ及びムラ
イトからなる結合材成分が１５〜５０質量％を占めてお
り、また不可避の不純物も存在しており、更に気孔率は
１０〜４０％である。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail, but the present invention is not limited to these embodiments. In the alumina-mullite-based porous sheet refractory of the present invention, the aggregate component having a particle size of 10 to 150 μm, which is composed of fused alumina and / or sintered alumina and fused mullite, accounts for 50 to 85% by mass. The binder component composed of alumina and mullite accounts for 15 to 50% by mass, unavoidable impurities are present, and the porosity is 10 to 40%.
【０００９】本発明のアルミナ・ムライト系多孔質シー
ト状耐火物においては、化学成分としてＡｌ2 Ｏ3 含有
量が８５〜９５質量％であることが好ましく、８７〜９
３質量％であることが一層好ましい。また、ＳｉＯ2 含
有量が５〜１５質量％であることが好ましく、７〜１３
質量％であることが一層好ましい。In the alumina-mullite porous sheet refractory of the present invention, the content of Al 2 O 3 as a chemical component is preferably 85 to 95% by mass, and 87 to 9% by mass.
More preferably, it is 3% by mass. Further, the SiO 2 content is preferably 5 to 15% by mass, and 7 to 13% by mass.
More preferably, it is mass%.
【００１０】本発明のアルミナ・ムライト系多孔質シー
ト状耐火物において、Ａｌ2 Ｏ3 含有量が９５質量％よ
りも多い場合には、即ちＳｉＯ2 含有量が５質量％より
も少ない場合には、耐熱衝撃性、熱スポーリング抵抗性
が低下する傾向があるので好ましくない。また、Ａｌ2
Ｏ3 含有量が８５質量％よりも少ない場合には、即ちＳ
ｉＯ2 含有量が１５質量％よりも多い場合には、目的と
する本発明の効果が不十分となる傾向があるので好まし
くない。In the alumina-mullite porous sheet refractory of the present invention, when the Al 2 O 3 content is more than 95% by mass, that is, when the SiO 2 content is less than 5% by mass, , Thermal shock resistance and thermal spalling resistance tend to decrease. In addition, Al 2
If the O 3 content is less than 85% by mass,
If the iO 2 content is more than 15% by mass, the intended effect of the present invention tends to be insufficient, which is not preferable.
【００１１】本発明のアルミナ・ムライト系多孔質シー
ト状耐火物において、気孔率が１０％よりも小さい場合
には、熱スポーリング抵抗性が低下する傾向があるので
好ましくなく、逆に気孔率が４０％よりも大きい場合に
は、強度の面で問題が生じる危険性があるので好ましく
ない。In the alumina-mullite-based porous sheet refractory of the present invention, if the porosity is less than 10%, the thermal spalling resistance tends to decrease, which is not preferable. If it is larger than 40%, there is a risk of causing a problem in strength, which is not preferable.
【００１２】本発明の製造方法においては、多孔質シー
トを作製するために電融アルミナ及び／又は焼結アルミ
ナと電融ムライトとからなる粒径１０〜１５０μｍの骨
材を用いる。このような骨材は常法に従って調製するこ
とができる。また、骨材中の電融アルミナ及び／又は焼
結アルミナ及び電融ムライトの組成割合は、骨材５０〜
８５質量％と結合材１５〜５０質量％とを用いて得られ
るアルミナ・ムライト系多孔質シート状耐火物におい
て、Ａｌ2 Ｏ3 ８５〜９５質量％、ＳｉＯ2 ５〜１５質
量％及び不可避の不純物を含む状態になるように適切に
選定される。このような選定は当業者には容易になし得
ることである。In the production method of the present invention, an aggregate having a particle size of 10 to 150 μm comprising fused alumina and / or sintered alumina and fused mullite is used to produce a porous sheet. Such an aggregate can be prepared according to a conventional method. The composition ratio of fused alumina and / or sintered alumina and fused mullite in the aggregate is 50 to 50%.
In an alumina-mullite-based porous sheet refractory obtained using 85% by mass and 15 to 50% by mass of a binder, 85 to 95% by mass of Al 2 O 3 , 5 to 15% by mass of SiO 2 and inevitable impurities Is selected appropriately so as to include Such a selection can be easily made by those skilled in the art.
【００１３】また、本発明の製造方法においては、焼成
後にアルミナとムライトとになるような組成比で混合し
たアルミナとシリカ微粉及び／又は粘土からなる粒径１
０μｍ以下の結合材を用いる。結合材中のアルミナとシ
リカ微粉及び／又は粘土との組成割合は、骨材５０〜８
５質量％と結合材１５〜５０質量％とを用いて得られる
アルミナ・ムライト系多孔質シート状耐火物において、
Ａｌ2 Ｏ3 ８５〜９５質量％、ＳｉＯ2 ５〜１５質量％
及び不可避の不純物を含む状態になるように適切に選定
される。このような選定は当業者には容易になし得るこ
とである。Further, in the production method of the present invention, a particle size of alumina and silica fine powder and / or clay mixed at a composition ratio such that alumina and mullite are obtained after firing is obtained.
Use a binding material of 0 μm or less. The composition ratio of alumina and silica fine powder and / or clay in the binder is 50 to 8 aggregate.
In an alumina-mullite-based porous sheet refractory obtained using 5% by mass and 15 to 50% by mass of a binder,
Al 2 O 3 85 to 95% by mass, SiO 2 5 to 15% by mass
And it is appropriately selected so as to contain unavoidable impurities. Such a selection can be easily made by those skilled in the art.
【００１４】本発明の製造方法においては、多孔性を確
保し且つ十分な強度を得るために、骨材５０〜８５質量
％に対して結合材１５〜５０質量％となる量比で用い
る。所定量の骨材と、結合材と、混練・成形に有効な量
のメチルセルロース等の有機バインダーと水とを混合
し、その混合物を例えば３本ロールによって十分に混練
する。その後、例えば押出成形又はロール成形によって
厚さ０．３〜５ｍｍのシートに成形する。その成形シー
トを１６００〜１８００℃で３〜１０時間程度焼成して
多孔質シートを得る。In the manufacturing method of the present invention, in order to secure porosity and obtain sufficient strength, the binder is used in a ratio of 15 to 50% by mass to 50 to 85% by mass of the aggregate. A predetermined amount of aggregate, a binder, an effective amount of an organic binder such as methylcellulose, etc., for kneading and molding and water are mixed, and the mixture is sufficiently kneaded by, for example, a three-roll mill. Thereafter, the sheet is formed into a sheet having a thickness of 0.3 to 5 mm by, for example, extrusion molding or roll molding. The formed sheet is fired at 1600 to 1800 ° C. for about 3 to 10 hours to obtain a porous sheet.
【００１５】上記のような製造方法によって得られる本
発明のアルミナ・ムライト系多孔質シート状耐火物は、
面粗さＲａが３μｍ以下であり、更に必要により両面研
磨することにより一層平滑な表面の多孔質シート状耐火
物とすることができ、耐熱衝撃性、熱スポーリング抵抗
性に優れており、１０００℃からの急冷に耐えることが
でき、高温例えば１６００℃におけるたわみ抵抗性が大
幅に改善されており、気孔率が１０〜４０％であるが、
十分な強度を有しているので棚組も可能であり、厚さ
１．５ｍｍで直径３００ｍｍの大型品も実用可能とな
り、従って、メッシュベルト炉で用いる多孔質シート状
耐火物として、セラミック基板等の焼成用や、アルミナ
セラミックの焼成用に用いるのに適している。The alumina-mullite-based porous sheet-like refractory of the present invention obtained by the production method as described above comprises:
The surface roughness Ra is 3 μm or less, and if necessary, the surface is polished on both sides to obtain a porous sheet-like refractory having a smoother surface, and has excellent thermal shock resistance and thermal spalling resistance. C. can withstand quenching from ℃, the deflection resistance at high temperatures such as 1600 ° C. is greatly improved, and the porosity is 10 to 40%.
Since it has sufficient strength, shelves are also possible, and large-sized products having a thickness of 1.5 mm and a diameter of 300 mm can be used practically. Therefore, as a porous sheet-like refractory used in a mesh belt furnace, a ceramic substrate or the like is used. It is suitable for use in firing of alumina and for firing of alumina ceramic.
【００１６】[0016]
【実施例】以下に実施例及び比較例を挙げて本発明をよ
り具体的に説明するが、本発明はこれらの例によって限
定されるものではない。 実施例１ 電融アルミナ６０質量％と電融ムライト４０質量％とを
含む粒径範囲が１０〜１５０μｍの骨材１００質量部
と、仮焼アルミナ７５質量％とシリカ微粉２５質量％と
を含む粒径範囲が１０μｍ以下の結合材３０質量部と、
有機バインダーとしてのメチルセルロース５質量部と水
１０質量部とを混合し、それらの混合物を３本ロールに
よって十分に混練した。その後、押出成形によって１０
０×１００×１．５ｍｍのシートに成形した。それらの
成形シートを乾燥後に１７００℃で５時間焼成して多孔
質シートを得た。得られた多孔質シートの嵩密度、気孔
率、下記の条件下で測定した１６００℃でのたわみ抵抗
性、１０００℃からの急冷耐久性は第１表に示す通りで
あった。EXAMPLES The present invention will be described more specifically with reference to examples and comparative examples, but the present invention is not limited to these examples. Example 1 100 parts by mass of an aggregate having a particle size range of 10 to 150 μm containing 60% by mass of fused alumina and 40% by mass of fused mullite, and particles containing 75% by mass of calcined alumina and 25% by mass of silica fine powder 30 parts by mass of a binder having a diameter range of 10 μm or less,
5 parts by mass of methylcellulose as an organic binder and 10 parts by mass of water were mixed, and the mixture was sufficiently kneaded with a three-roll mill. Then, 10
It was formed into a sheet of 0 × 100 × 1.5 mm. After drying, the molded sheets were fired at 1700 ° C. for 5 hours to obtain a porous sheet. The bulk density, porosity, deflection resistance at 1600 ° C. measured under the following conditions, and quenching durability from 1000 ° C. of the obtained porous sheet were as shown in Table 1.
【００１７】比較例１及び比較例２ また、比較例１として実施例のシートと同じ形状のアル
ミナ磁器シートを作製し、比較例２として実施例のシー
トと同じ形状のアルミナ９９％の多孔質シートを作製し
た。それらのシートの嵩密度、気孔率、１６００℃での
たわみ抵抗性、１０００℃からの急冷耐久性は第１表に
示す通りであった。Comparative Example 1 and Comparative Example 2 As Comparative Example 1, an alumina porcelain sheet having the same shape as the sheet of the example was prepared, and as Comparative Example 2, a porous sheet of 99% alumina having the same shape as the sheet of the example. Was prepared. The bulk density, porosity, resistance to deflection at 1600 ° C., and quenching durability from 1000 ° C. of these sheets were as shown in Table 1.
【００１８】たわみ抵抗性試験条件 ・試験片形状： １００×１００×１．５ｍｍ ・荷重： 中央に５００ｇ ・電気炉中、１６００℃で３時間保持 １０００℃からの急冷耐久性試験条件 ・試験片形状： １００×１００×１．５ｍｍ ・試験片を電気炉中にセットした後、室温から１０００
℃／ｈｒで昇温させ、１０００℃に３０分間保持し、そ
の後電気炉よりすばやく取り出し、外気中で放冷して、
亀裂発生状況を観察した。Deflection resistance test conditions-Test specimen shape: 100 x 100 x 1.5 mm-Load: 500 g at the center-Hold in an electric furnace at 1600 ° C for 3 hours Rapid cooling durability test conditions from 1000 ° C-Test specimen shape : 100 × 100 × 1.5 mm ・ After the test piece was set in an electric furnace, it was cooled from room temperature to 1000
C./hr, hold at 1000.degree. C. for 30 minutes, then quickly take out from the electric furnace, let cool in the open air,
The state of crack generation was observed.
【００１９】 [0019]
【００２０】第１表のデータから明らかなように、比較
例１のアルミナ磁器シートでは１６００℃におけるたわ
み抵抗性が不十分であり、１０００℃からの急冷耐久性
試験では破損が発生し、また、比較例２のアルミナ９９
％の多孔質シートでは１６００℃におけるたわみ抵抗性
が不十分であり、１０００℃からの急冷耐久性試験では
小さなひび割れが発生したが、実施例１の本発明のアル
ミナ・ムライト系多孔質シート状耐火物においては、１
６００℃におけるたわみ抵抗性が改善されており、１０
００℃からの急冷耐久性試験では破損、ひび割れが発生
しない。As is clear from the data in Table 1, the alumina porcelain sheet of Comparative Example 1 has insufficient deflection resistance at 1600 ° C., and breaks in a quenching durability test from 1000 ° C. Alumina 99 of Comparative Example 2
% Of the porous sheet has insufficient deflection resistance at 1600 ° C., and small cracks occur in the quenching durability test from 1000 ° C. For things, 1
The deflection resistance at 600 ° C. is improved,
No breakage or cracking occurs in the quenching durability test from 00 ° C.
【００２１】[0021]
【発明の効果】本発明のアルミナ・ムライト系多孔質シ
ート状耐火物は、例えば１６００℃におけるたわみ抵抗
性が大幅に改善されており、１０００℃からの急冷耐久
性試験でも破損、ひび割れが発生せず、メッシュベルト
炉で用いる焼成用敷板や、セラミック基板、アルミナセ
ラミックの焼成用敷板に用いるのに適している。The alumina-mullite porous sheet-like refractory of the present invention has significantly improved deflection resistance at, for example, 1600 ° C, and does not break or crack even in a quenching durability test from 1000 ° C. Instead, it is suitable for use as a firing plate used in a mesh belt furnace, a ceramic substrate, or a firing plate for alumina ceramic.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 内田 富大 福岡県大牟田市浅牟田町３番地の１ 三井 金属鉱業株式会社ＴＫＲ事業部内 (72)発明者 堀内 幸士 福岡県大牟田市浅牟田町３番地の１ 三井 金属鉱業株式会社ＴＫＲ事業部内 Ｆターム(参考） 4G019 FA11 GA02 4G030 AA36 AA37 BA25 CA08 CA09 GA09 GA11 GA13 GA27 HA04 PA01 PA03 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tomihiro Uchida 3-1, Asamuta-cho, Omuta-shi, Fukuoka Mitsui Mining & Mining Co., Ltd. TKR Division (72) Inventor Koji Horiuchi 3 Asamuta-cho, Omuta-shi, Fukuoka No.1 Mitsui Mining & Metals Co., Ltd. TKR Division F Term (Reference) 4G019 FA11 GA02 4G030 AA36 AA37 BA25 CA08 CA09 GA09 GA11 GA13 GA27 HA04 PA01 PA03
Claims (5)
融ムライトとからなる粒径１０〜１５０μｍの骨材成分
５０〜８５質量％と、アルミナ及びムライトからなる結
合材成分１５〜５０質量％と、不可避の不純物とからな
る焼成体であって、気孔率が１０〜４０％であることを
特徴とするアルミナ・ムライト系多孔質シート状耐火
物。An aggregate component composed of fused alumina and / or sintered alumina and fused mullite having a particle size of 10 to 150 μm and having a particle size of 50 to 85% by mass, and a binder component composed of alumina and mullite having a content of 15 to 50% by mass. And an unavoidable impurity, wherein the porosity is from 10 to 40%.
５〜９５質量％であり、ＳｉＯ2 の含有量が５〜１５質
量％であり、また気孔率が１０〜４０％であることを特
徴とする請求項１記載のアルミナ・ムライト系多孔質シ
ート状耐火物。2. A chemical composition wherein the content of Al 2 O 3 is 8
And 5 to 95 wt%, a content of SiO 2 is 5 to 15 mass%, also claim 1 alumina mullite according porous sheet, wherein the porosity is from 10 to 40% Refractory.
徴とする請求項１又は２記載のアルミナ・ムライト系多
孔質シート状耐火物。3. The alumina-mullite porous sheet refractory according to claim 1, which can withstand rapid cooling from 1000 ° C.
徴とする請求項１、２又は３記載のアルミナ・ムライト
系多孔質シート状耐火物。4. The alumina-mullite porous sheet refractory according to claim 1, wherein the surface roughness Ra is 3 μm or less.
融ムライトとからなる粒径１０〜１５０μｍの骨材５０
〜８５質量％と、焼成後にアルミナとムライトとになる
ような組成比で混合したアルミナとシリカ微粉及び／又
は粘土からなる粒径１０μｍ以下の結合材１５〜５０質
量％と、混練・成形に有効な量の有機バインダーと水と
を混合し、十分に混練した後、厚さ０．３〜５ｍｍのシ
ートに成形し、乾燥後１６００〜１８００℃で焼成する
ことを特徴とする請求項１、２、３又は４記載のアルミ
ナ・ムライト系多孔質シート状耐火物の製造方法。5. An aggregate 50 having a particle size of 10 to 150 μm, comprising fused alumina and / or sintered alumina and fused mullite.
-85% by mass, and 15-50% by mass of a binder having a particle size of 10 μm or less composed of alumina and silica fine powder and / or clay mixed at a composition ratio of alumina and mullite after firing, effective for kneading and molding An amount of an organic binder and water are mixed, sufficiently kneaded, formed into a sheet having a thickness of 0.3 to 5 mm, dried, and fired at 1600 to 1800 ° C. 5. The method for producing an alumina / mullite-based porous sheet-like refractory according to item 3 or 4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000028856A JP2001220259A (en) | 2000-02-07 | 2000-02-07 | Alumina-mullite porous refractory sheet and method for producing the same |
| KR1020000061172A KR20010077900A (en) | 2000-02-07 | 2000-10-18 | Alumina mullite porosity sheet form fireproof and method for producing the same |
| TW89122784A TWI226880B (en) | 2000-02-07 | 2000-10-30 | Alumina-mullite porous refractory material in a sheet form and their production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000028856A JP2001220259A (en) | 2000-02-07 | 2000-02-07 | Alumina-mullite porous refractory sheet and method for producing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001220259A true JP2001220259A (en) | 2001-08-14 |
Family
ID=18554193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000028856A Pending JP2001220259A (en) | 2000-02-07 | 2000-02-07 | Alumina-mullite porous refractory sheet and method for producing the same |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2001220259A (en) |
| KR (1) | KR20010077900A (en) |
| TW (1) | TWI226880B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000072672A (en) * | 2000-09-19 | 2000-12-05 | 이종국 | Preparation Method of Alumina Refractory with melted mullite Particles |
| JP2002308668A (en) * | 2001-04-11 | 2002-10-23 | Noritake Co Ltd | Refractory and its production method |
| KR20030051107A (en) * | 2001-12-17 | 2003-06-25 | 김병주 | Porous ceramic fire-resistant materials and preparation thereof |
| JP2007153644A (en) * | 2005-12-01 | 2007-06-21 | Ngk Insulators Ltd | Method for manufacturing refractory material and refractory material obtained thereby |
| CN113929477A (en) * | 2021-08-24 | 2022-01-14 | 萍乡市金刚科技工业园有限公司 | Ceramic ball firing plate and preparation method thereof |
| CN114213114A (en) * | 2021-12-27 | 2022-03-22 | 宜兴市隆昌耐火材料有限公司 | High-temperature-resistant and anti-erosion corundum-mullite brick and preparation method thereof |
| CN114621017A (en) * | 2022-03-24 | 2022-06-14 | 武汉钢铁有限公司 | Microporous refractory material lining plate for coke pot bottom gate and preparation method thereof |
| CN114890800A (en) * | 2022-05-12 | 2022-08-12 | 贵州华鑫新材料有限公司 | Preparation method of novel mullite-combined light castable |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9758434B2 (en) | 2015-06-01 | 2017-09-12 | Saint-Gobain Ceramics & Plastics, Inc. | Refractory articles and methods for forming same |
-
2000
- 2000-02-07 JP JP2000028856A patent/JP2001220259A/en active Pending
- 2000-10-18 KR KR1020000061172A patent/KR20010077900A/en not_active Application Discontinuation
- 2000-10-30 TW TW89122784A patent/TWI226880B/en not_active IP Right Cessation
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000072672A (en) * | 2000-09-19 | 2000-12-05 | 이종국 | Preparation Method of Alumina Refractory with melted mullite Particles |
| JP2002308668A (en) * | 2001-04-11 | 2002-10-23 | Noritake Co Ltd | Refractory and its production method |
| JP4494667B2 (en) * | 2001-04-11 | 2010-06-30 | 株式会社ノリタケカンパニーリミテド | Refractory and manufacturing method thereof |
| KR20030051107A (en) * | 2001-12-17 | 2003-06-25 | 김병주 | Porous ceramic fire-resistant materials and preparation thereof |
| JP2007153644A (en) * | 2005-12-01 | 2007-06-21 | Ngk Insulators Ltd | Method for manufacturing refractory material and refractory material obtained thereby |
| CN113929477A (en) * | 2021-08-24 | 2022-01-14 | 萍乡市金刚科技工业园有限公司 | Ceramic ball firing plate and preparation method thereof |
| CN113929477B (en) * | 2021-08-24 | 2023-08-29 | 萍乡市金刚科技工业园有限公司 | Ceramic ball firing plate and preparation method thereof |
| CN114213114A (en) * | 2021-12-27 | 2022-03-22 | 宜兴市隆昌耐火材料有限公司 | High-temperature-resistant and anti-erosion corundum-mullite brick and preparation method thereof |
| CN114213114B (en) * | 2021-12-27 | 2022-12-09 | 宜兴市隆昌耐火材料有限公司 | High-temperature-resistant and anti-erosion corundum-mullite brick and preparation method thereof |
| CN114621017A (en) * | 2022-03-24 | 2022-06-14 | 武汉钢铁有限公司 | Microporous refractory material lining plate for coke pot bottom gate and preparation method thereof |
| CN114621017B (en) * | 2022-03-24 | 2022-11-11 | 武汉钢铁有限公司 | Microporous refractory material lining plate for coke pot bottom gate and preparation method thereof |
| CN114890800A (en) * | 2022-05-12 | 2022-08-12 | 贵州华鑫新材料有限公司 | Preparation method of novel mullite-combined light castable |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI226880B (en) | 2005-01-21 |
| KR20010077900A (en) | 2001-08-20 |
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